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| http://dx.doi.org/10.1021/acs.est.0c08065 | DOI Listing |
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Geochemical fractionation and bioavailability of heavy metals in the middle gangetic plain: Assessing ecological risks in water and sediment systems.
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School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India. Electronic address:
The Gangetic Plain, one of the world's most fertile regions, is vital to food and water security in densely populated areas. However, metal contamination in sediments and water poses significant challenges, owing to intensified industrial and agricultural activities and periodic flooding. The ecological risks imposed by metals in the Middle Gangetic Plain remain underexplored because of limited data on their bioavailability across varying sediment depths.
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J Contam Hydrol
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Environmental Science, School of Agriculture and Environment, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
Denitrification has been identified as a significant nitrate attenuation process in groundwater systems. Hence, accurate quantification of denitrification rates is consequently important for the better understanding and assessment of nitrate contamination of groundwater systems. There are, however, few studies that have investigated quantification of shallow groundwater denitrification rates using different analytical approaches or assuming different kinetic reaction models.
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Injecting CO into deep geological formations can be an effective carbon removal and storage technology to mitigate global climate change. Interaction of injected CO with rock formations changes pH and hydrochemistry within the deep injection zone (> 800 m depth). However, cap rocks and multiple tight aquitards typically act as barriers to protect the shallow aquifer from changes in the injection zone.
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Department of Geology, Aligarh Muslim University, Aligarh, India.
Evolution of groundwater genesis in Central Ganga Plain (CGP) is scrutinized with due consideration of hydrochemical and hydrodynamic environment within Quaternary alluviums. Wide variation in hydrochemical facies in CGP indicates a dynamic hydro-geochemical environment influenced from the seasonal rainfall, return flows, canal seepages, and anthropogenic activities. The Ca-HCO facies retaining meteoric nature is characterized by shallow water levels, high recharge rate, high hydraulic conductivity, low salinity and trace elemental load.
View Article and Find Full Text PDFPrediction of nitrate concentration and the impact of land use types on groundwater in the Nansi Lake Basin.
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School of Environmental Studies, China University of Geosciences, Wuhan 430074, China; State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution, China University of Geosciences, Wuhan 430074, China.
Groundwater faces a pervasive threat from anthropogenic nitrate contamination worldwide, particularly in regions characterized by intensive agricultural practices. This study examines groundwater quality in the Nansi Lake Basin (NSLB), emphasizing nitrate (NO-N) contamination. Utilizing 422 groundwater samples, it investigates hydrochemical dynamics and the impact of land use on groundwater composition.
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